Facebook Inc. announced on 12 June 2013 that it is introducing the hashtags, which are basically the number signs used on services such as Instagram and Twitter for identification of topics for discussions. Hashtags allow the users to search for the topics if they have hashtags used before the word because it creates the link to that word.
For instance, in case a user makes use of hashtag before the name of Mount Everest, the word will turn into the link which will be clickable and will allow the users to find other posts related to Mount Everest.
Facebook explained that the hashtags were the first step for making it simpler for users to know about the discussions of other people. Facebook however did not disclose about other tools which it plans to introduce in near future. But the company indicated that in coming weeks or months, it has other features in the pipeline.
Facebook has kept privacy concern in its mind as well. The hashtags being introduced will also confirm to the privacy settings of the users. This means that putting the hashtag in any post whose setting is “visible to only friends,” will not let it show up to anyone else except your friends.
Clickable hashtags will be available by June end 2013.